Locking mechanism.



n Ive. 739,075. i. Patented september 15,1903.

' UNITED STATES PATENT OFFICE.

RUDOLPH GOEB, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE CONTROLLER COMPANY OF AMERICA, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

LOCKING 'MECHANlsMf SPECIFICATION forming pere ef Letters Patent No. 739,075, dated september 15, 1903.

Application tiled October 13,1902. Serial No. 127,094. I'No model.)

T @ZZ wwm I? 777/603/ @0H/067%.' having arms 9, these arms successively pro- Be it known that I, RUDOLPH W. GOEB, a Ajecting beyond the casingas the plate is rocitizen of the United States,.residing at St. tatedand being spaced from each other a Louis, Missouri., have inventada certain new sufticient distance to permit the telephoneand useful Improvement in Locking Meehanreceiver 3 to lie between any adjacent arms 55 isms,of which the followingisa full, clear, and when the receiver is supported upori the susexact description, such as Will enable others 4pension-hook. Pivotally supported within skilled in the art to which it appertains to the casingis a locking-lever 10, which has a make and use the same, reference being had coin-receiving arm 11, projecting upon one 1o to the accompanying drawings, forming part side of the pivot andextending under the 6o of this specification, in Awhichraceway 6, and has also ya locking-arm 12, Figure 1 is an elevation of the present which when the parts are in normal position mechanism, the casing being shown in seclies slightly above the plane in which the tion. Fig. 2 is an elevation at right angles arms of the spider-plate rotate. A finger or I5 to the view shown in Fig. 1, the greater porprojection 13 depends from the free end of 65 tion of the front wall of the casing being rethe'locking-arm 12, and when the saidv arm is moved and the front wall of the coin-slotbe-` in normal locking position a suitable portion ing broken away, .while a portion of the casof said finger or projection lies in the path of ing'is shown in section. Fig. 3 is a top plan travel and slightly in advance of one of the 2o view, partly in section; and Fig. 4 is a fragarms 9 of the spider-plate or receiver-locking 7o mentary detail view. element. The locking-lever is also provided My invention relates to improvements in with a stop-arm 14, which extends uuderthe locking mechanisms, and is particularly aplocked arm dof the spiderplateandis adapted plicable to coin-controlled locking mechanlto engage said arm' when the locking-arm of isms for telephones. the lever is thrown upwardly andto thus limit 75 My object is to simplify the construction of the initial movement of the locking-lever, so that portion of the mechanism which permits that said lever will not initiallybe thrown the parts to be thrown into unlocking position into sucha position that the coin isdeposite by an authorized person Without the use of a from the coin-receiving arm 11. A I 3o coin or token and to remove any possibility T he parts are shown in their normall lock- 8o of the mechanism failing to be brought into K. ing positions in Figs. 1 and 3'and in full lines locking position when the receiver is replaced lin Fig. 2.` When a coin is'deposited in to the upon the hook. 5 raceway 6, it falls upon the coin-receiving Y' To theseends and also to improve generarm 11 and throws the locking-lever into the ally upon mechanism of the character indiposition indicated by dotted lines in Fig. 2, 85 cated, my invention consists in the various and when the receiver is withdrawn from bematters hereinafter described and claimed.` tween the arms 2a of the fork of the receiver Referring now. more particularly to the suspension-hook the spider-plate is rotated drawings, 1 indicates a telephone-box of any sufficiently to carry ther arm 9, which has 4o usual or preferred construction, and 2 the reheretofore been locked out ot'` engagement 9o ceiver suspension-hook extending from the' with the stop-arm14, and the locking-lever same, the receiver being indicated as 3.' A is thus permitted to rotate sufficientlyv to box or casing 4, suitably supported at the side cause the coin to be discharged. The porof the telephone-box, as by being connected tion of the locking-lever upon the side of the to awall or other support, contains the herepivot which includes the locking-arm over- 95 inafter-mentioned locking mechanism andis balances the portion of said lever upon the provided with a coin-slot or raceway 6. The opposite side of its pivot, so that as soon as front wall ofthe casing is provided with a the coin is discharged the locking-lever falls horizontal slot 7, and pivotally supported to into its normal position, the free end of the 5o rotate through said slot is a spider-plate 8, locking-arm being beveled, as shown at 15, to Ico permit a spider-arm to lift the locking-lever i and move backwardly under the same as the spider-plate is rotated by the action of replacing the receiver upon the hook 2, the locking-lever falling into locking position as soon as such spider arm 9 has passed backwardly under the finger or projection 13.

The mechanism heretofore described forms no part of my invention and is fully disclosed in the application of William H. Scott for patent upon telephone-lock, filed September G, 1902, Serial No. 122,392. It is believed that no further explanation of the operation of the above-described mechanism is necessary in this specification.

Suitably supported within the casing 4, and preferably below the locking-lever 10, is an electrom agnet 16, and a releasing-lever 18, which has an armature 17 formed thereon. or attached thereto, is pivotally supported in the casing to coperate with the said magnet, the said releasing-lever being preferably pivoted below the said magnet and extending upwardly, so that ifs upper end (or a laterally-extending finger 18n thereon) lies under and is adapted to cooperate with the lower edge 14 of the stop-arm 14. The releasinglever is so pivoted. that it tends to fall away from the magnet 1G, the outward movement of said lever being conveniently limited b v causing the free end of the lever to extend at the side of the locking-arm 12, as shown at 18D, said releasing-lever (or the extension 18b thereof) being of such length that in the outward movement of the lever the said extension engages the stud 45, upon which the locking-lever 10 is pivoted.

The projection or finger 13 forms what may be termed a locking-shoulder 13n with the locking-arm 12, which locking-shoulder is a portion of the said finger which lies in ad- Vance of one of the spider-arms 9 for locking said arm against forward movement, and from the lower end ot' said locking-shoulder the said projection 13 is beveled downwardly and outwardly, as shown at 13b, this beveled surface meeting the beveled end 15 in a point. At the outer end of the surface 14a of the stop-arm which cooperates with the finger 18a is a notch 14h, which is adapted to receive the said finger 18, the parts being so proportioned that when the releasing-lever 18 is in normal position, as shown by full lines in Fig. 2, the locking-arm of the 'locking-lever lies in such position that the locking-shoulder 13a is in advance of one of the spider-arms 9 and the spider-plate is locked, as heretofore described, while when the releasing-lever 18 is in its raised position, to which it is brought when attracted by the magnet, the finger 18 lies in the notch 14h and the locking-arm 12 is elevated to such an extent that the locking-shoulder 13n lies above the spider-plate.

The magnet 16 is included in an electric circuit which is provided with a push-button or other switch, which can be located at any convenient point. When the circuit is open, the parts lie in the positions indicated by fulllines in Fig. 2 and the spider-plate is locked against forward rotation. When, however, the circuit is closed, the releasing-lever 18 is attracted to the magnet, and as the surface 14a intersects the arc in which the engaging edge of the finger 18 moves the said finger 18a rides upon the said surface during its movement to elevated position, and the locking-lever is thus rocked to elevate its locking-arm, the said locking-lever rocking backwardly slightly when the said finger 18 passes beyond the said surface 14 in order to cause the said finger 18 to lie in the notch 14h, and thus support the locking-lever in rocked position, with the locking-shoulder 13 above the plane ofthe spider-plate 8,as shown in dotted lines in Fig. 4. The spider-plate is now free to be rotated in either direction, and as the receiver is withdrawn fromv the hook it engages one of the spider-arms 9, and thus rotates the spider-plate to cause the spiderarm 9, which has heretofore bee-n locked, to engage the beveled surface 13b of the projection or finger 13 and to thereby rock the locking-lever to elevate the stop-arm 14 sufficiently to free the finger 18 of the releasing-lever from the notch 14", as shown in dotted lines in Fig. 4, whereupon, the circuit being broken, the releasing-lever falls into normal inoperative position, as shown by dot` ted lines in Fig. 4 and by full lines iu Fig. 2, and the locking-lever 10 returns to its normal position, ready to lock an arm of the spiderplate when the same is forced backwardly beneath the finger 13 as the receiver is replaced upon the hook.

As will be apparent from the foregoing description, the spider plate is returned to locked position by having one of its arms thrown backwardly under the finger or projection 13, the locking-arm 12 being thrown upwardly by reason of the engagement of the spider-arm with the beveled lever end 15. As the locking-arm 12 rises the stop-arm v14 also rises, and should the spider-arm 9 be forcibly and rapidly thrown backwardly there is some little danger of the said arm 9 meeting the stop-arm during the backward movement of the spider-arm. If, therefore, the end of the stop-arm were substantially vertical and were thus to meet the vertical edge of the spider-arm, there is danger of the stoparm preventing the spider-arm from completing its full backward movement, in which event the spider-arm could come to rest directly under the projection 13, with said projection supported upon said arm and the parts thus in unlocked position. In order to avoid this possibility, I have beveled the free end of the stop arm upwardly and backwardly, as shown at 14, whereby even if the end ot said stop-arm should be struck by the spider-arm as the latter moves toward locked position the said spider-arm merely rides along the said beveled surface of the stop-arm', and thus forces said stop-arm out of the way.

IIO

. described without in the least departing from -of the several parts of my device can be made ing member supports said locking member in The releasing mechanism is extremely siml ple and adds only two parts to the machinenamely, the electromagnet and the releasinglever.

I am aware that many minor changes in the construction, arrangement, and combination and substituted for those herein shown and the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Leiters Patent, is

1. In a mechanism of the character indicated, a lockable element, a movable locking member for locking the same, a movable releasing member whose tendency is to move from releasing position, means whereby said releasing member supports said locking member in unlocking position, means for .maintaining said releasing member in releasing position, and means whereby said releasing member moves from releasing position upon movement of said lockable element; substantially as described. N

2. In a mechanism of the character indicated, a movable locking member, a movable releasing member,means whereby said releasunlocking position, and means whereby said locking member supports said releasing member in releasing position; substantially as described. n

3. In a mechanism of the character indicated, a lockable element., a movable locking member therefor, a movable releasing member, means whereby said releasing member supports said locking member in unlocking position, means whereby said locking member supports said releasing member in releasing posit-ion, and means whereby'upon movement of said lockable element said releasing member is thrown from said releasing position; substantiallyl as described.

4. Ina mechanism of the character indicated, a lockable element, a movable locking member therefor, a movablereleasing member, means whereby said releasing member supports said locking member in unlocking position, means whereby said locking member supports said releasing member in releasing position, and a part upon said locking member and in the path of movement of said lockable element, whereby upon movement of said lockable element said locking member is thrown from supporting position; substantially as described.

5. In a mechanism of the character indicated, a lockable element, a movable locking member therefor, a proj ection upon said locking'member and having a locking shoulder and an inclined surface adapted to lie in the path of movement of said lockable element when said member is in unlocking position, a movable releasing member, means whereby said releasing member supports said locking `releasing member in releasing member in unlocking position, and mea-ns supports said position; subwhereby said locking member stantially as described.

6. In a mechanism of the character indicated, a lockable element, a movable locking member therefor provided with a notch, Va movable releasing member adapted to enter said notch, whereby said releasing member is maintained in releasing position, and means whereby when said lockable element is moved said locking member is movedto release said releasing member; substantially as described.A y

7. In a mechanism of the character indicated, a movable locking member, a movable releasing member cooperating therewith, and a supporting device for said locking member and in the path of movement of said releasing member to limit such movement; substantially as described.

8. In a` mechanism of the charact-er indicated, a lockable part, a movable locking member having' a locking-arm and a stop-arm, said stop-arm being provided with a notch, a movable releasing member having a part adapted to enter said notch, and a projection upon said locking-arm provided with a locking-shoulder and a surface adapted to be engaged by said lockable part in the movement of the latter for causing said locking member to be thrown to release said releasing member from said notch; substantially as described.

9. In a mechanism ofthe character indicated, a lockable element, a movable locking member including a locking-arm and a stoparm, said stop-arm being adapted to engage said lockable element in the movement of said locking member by which said lockable element is released, and means whereby said lockable element throws said locking member Vwhen said element engages said stoparm; substantially as described.

l0. In a mechanism of the character indicated, a lockable element, and a movable locking member provided with a locking-arm and a stop-arm, said stop-arm being adapted to engage said lockable element in the movement of'said locking member by which said lockable element is released and having movement across the path of movement of said lockable element, and one of said two lastmentioned parts having an inclined surface presented to the other thereof; substantially as described.

ll. In a mechanism of the character indicated, a lockable element, and a movable locking member having a locking-arm anda stop-arm, said stop-arm being adapted to engage said lockable element in the movement of said locking member by which said lockable element is released, the end of said stop-arm being inclined; substantially as described.

. 12. In a mechanism ofthe character indicated, a lockable element, a movable locking member having a locking-arm and a stoparm, each of said arms being movable across the path of movement of said lockable elehaving a part ICO IIO

ment, means whereby said lockable element across the path of movement of said lockable can engage said locking-arm and thus move element and each of said arms having an in- I; said locking member in a direction tending to clined surface adapted to be engaged by said throw said stop-arm across the path of movelockable element during its movement in the 5 ment of said lockable element, and means said path; substantially as described.

whereby when said lockable element engages In testimony whereof I hereunto ax my said stop-arm in its said movement it throws signature, in the presence of two witnesses, zo said stoparm out of said path of movement; this 9th day of October, 1902. substantiall as described. w

:o 13. In a iflechanism of the character indi- RUDOLPH W GOB'B cated, a lockable element, and a movable Witnesses: locking member having a locking-arm and a GALES P. MOORE, stop-arm, each of said arms being movable 1 GEORGE BAKEWELL. 

